Heater for automobiles



May 17, 1927. 1,628,691

J. J. SUNDAY HEATER FOR AUTOMOBILES Filed Jan. 25, 1926 3 f l 7 x Jams; J Ju/m a WMJW 9&1 WW

Patented May .17, 19127.1(

UNITED STATES.

KELGH VENTILATING HEATER COMPANY, A CORPORATION OF MICHIGAN.

HEATER FOR AUTOMOBILES.

Application filed J'anuary25, 1926. Serial No. 83,733.

This invention relates generally to heaters for automobiles.

One of the essential objects of the invention is to provide the usual exhaust muffler of an automobile with a jacket in which fresh air from the atmosphere is adapted to be heated by the mufiler before being dis--- charged into the body' of the automobile.

Another object is to provide a jacket of this type that is cheap to manufacture and is easy to install and that will serve effectively to protect the mufiler, especially during summer, by maintaining a circulation of,

fresh air about the muffler so that the latter will be prevented from burning out or being otherwise damaged.

With the above and other objects in view, the invention resides in certain novel features of construction, combinations and arrangements of parts as will be more fully described and particularly pointed out in the appended claims.

. In the accompanying drawing:

Figure 1 is a fragmentary side elevation of an automobile with a heater embodying my invention applied thereto;

Figure 2. is an enlarged longitudinal vertical sectional view through the heater jacket and showing the mufller in elevation.

Figure.3 is an end view of the heater jacket. I

- Referring now to the drawing, the numeral '1 designates a jacket embodying my invention surrounding a standard type of ex haust muflier 2 of an automobile. As shown, air from the atmosphere is supplied to the forward end of the jacket 1 by a suitable pipe or-conduit 3 and after being heated by the heat thrown off by the muffler 2 is delivered from the opposite end of the jacket into the body of the automobile by meansof a suitable pipe or conduit 4. It is well known that mufllers are constructed to retard the flow of the exhaust gases from the engine so that the intense heat of the gases will be thrown off before the gases are discharged into the atmosphere, hence it will be apparent that the outer walls or casing of the mutllerwill receive this heat and will provide a large heating surface for the air within the jacket. Inasmuch as the jacket completely surrounds the mufiler and receives the fresh air from the atmosphere in .resorted to when desired as fall PATENT'OFFICE.

JAMES J. SUNDAY, OF. DETROIT, MICHIGAN, ASSIGNOR, BY'MESNE ASSIGNMENTS, TO

serve as a baffle for deflecting the air about the jacket and will thereby effectively retard the flow of air so that it will be heated thoroughly before being delivered into the body of the automobile.

In order that the jacket 1 may be manufactured cheaply and will be easy to install, it is preferably constructed of two complementary transversely curved sections 5 and 6 respectively which have segmental recesses 7 atthe endsthereof for receiving the sections 8 and 9 respectively of the usual exhaust conduit and have marginal flanges 10 that are adapted to be bolted or otherwise secured together to hold the acket into position. Inasmuch as certain types of muffiers have peripheral flanges such as 11 shown in Figure 2, the section s5 and 6 are .preferably provided adjacent to their oppogoing description, the nature and advantage of my invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described and that such changes may be within the scope of what is claimed. 1 j What I claim as my invention is:

1. In a heater for automobiles, a mufller having peripheral flanges, an air heatingjacket including complementary sections adapted to surround said mufiler in spaced relation thereto, said jacket having an internal diameter substantially equal to the diameter of the peripheral flanges and having enlarged/channel-shaped portions surrounding said flanges, and metal stripsb'ridging said channel-shaped portions and engaging said peripheral flanges.

2. In a heater for automobiles, a mufiler having peripheral flanges, a jacket including com lementary sections surrounding said mu er having an internal diameter substantially equal to the diameter of the peripheralv flanges, a conduit connected to said jacket in advance of said flan es vfor supplying fresh air from the atmosp ere to one end of the jacket, said jacket having enlarged channel-shaped recesses ad'acent the ends thereof surroundin said anges for permitting the passage of air longitudinally of the acket from said conduit, and means bridging said channel-shaped recess and engaging said peripheral flanges.

3. In a heater for automobiles, a mufiier having peripheral flanges, a jacket includ- 'ing com lementary sections surrounding said In er and having laterally rejecting channelrshaped portions surroun ing said flanges, and means for securin said jacket in spaced relation to said mufii er including metal strips disposed-between said flanges and. channel-shaped portions.

4. In a heater for automobiles, a mufiier having peripheral flanges, a jacket including complementary sections surrounding said mufiler having laterally projecting channel-shaped portions adjacent the opposite ends thereof cooperating with the peripheral flanges to form an air passage longitudinally of the jacket, and means engagmg said channel-shaped portions and flanges for securing the jacket in spaced relation to the muflier. I

In testimony whereof I affix my signature.

JAMES J. SUNDAY. 

